#root {
    width: 100%;
}

.log,
.reg {
    width: 800px;
    border: 1px solid rebeccapurple;
    margin: 0 auto;
    text-align: center;
    margin-top: 20px;
}

.log button {
    width: 80px;
    margin: 10px auto;
    display: block;
}

.reg button {
    display: block;
    width: 80px;
    margin: 10px auto;
    display: block;
}